There is some error while MR jobs are running. To get the root cause please post in the error log from the failed task.
You can browse the Job Tracker web UI and choose the right job Id and drill down to the failed tasks to get the error logs.
Sent from handheld, please excuse typos.
From: shaik ahamed <[EMAIL PROTECTED]>
Date: Fri, 6 Jul 2012 17:09:26
To: <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: hi all
* As im selecting the distinct column from the vender Hive
*Im getting the below error plz help me in this*
*hive> select distinct supplier from vender_sample;*
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks not specified. Estimated from input data size: 1
In order to change the average load for a reducer (in bytes):
In order to limit the maximum number of reducers:
In order to set a constant number of reducers:
Kill Command = /usr/local/hadoop/bin/../bin/hadoop job
-Dmapred.job.tracker=md-trngpoc1:54311 -kill job_201207061535_0005
Hadoop job information for Stage-1: number of mappers: 1; number of
2012-07-06 17:03:13,978 Stage-1 map = 0%, reduce = 0%
2012-07-06 17:03:20,001 Stage-1 map = 100%, reduce = 0%
2012-07-06 17:04:20,248 Stage-1 map = 100%, reduce = 0%
2012-07-06 17:04:23,262 Stage-1 map = 100%, reduce = 100%
Ended Job = job_201207061535_0005 with errors
Error during job, obtaining debugging information...
Examining task ID: task_201207061535_0005_m_000002 (and more) from job
Task with the most failures(4):
FAILED: Execution Error, return code 2 from
MapReduce Jobs Launched:
Job 0: Map: 1 Reduce: 1 HDFS Read: 99143041 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 0 msec